Fashionistas hot-footed it to H&M Saturday, waiting overnight in the rain to buy shoes by high-end designer Jimmy Choo at bargain prices.They had to act with stiletto precision: The superstore gave groups of 20 shoppers just 10 minutes to fill their baskets.At the Herald Square outlet, women began lining up at 9 p.m. for the 10 a.m. opening - and said it was worth it. A pair of handmade Jimmy Choos can cost a glamour girl $1,000 or more - but his limited-edition line for H&M retails for $69 to $300 a pair.At those prices, H&M apparently expected a well-heeled stampede.Read more: nydailynewsSoHo Accessories